Description This is a professional and practical lid knob for pressure cookers. Comfortable to grip, easy to install and remove. It helps prevent burns from the hot cover, is explosion-proof, corrosion-resistant, and not prone to rust, offering convenience and comfortable use. Features - Color: Black. - Material: Plastic. - Size: 7.50X7.50X3.50cm/2.95X2.95X1.38in. - Application: Suitable for pressure cooker covers with a 15mm hole diameter. - Made of durable plastic, this lid handle is practical and can withstand long-term use. - It prevents burns from hot covers, is explosion-proof, corrosion-resistant, and resistant to rust. - Comfortable to hold, easy to install and disassemble, saving you time and energy. - These new and attractive knobs can enhance the uniqueness of your pressure cooker lid without compromising overall aesthetics. - A great accessory for pot lids, featuring fine workmanship and not easily deformed or damaged. Packing list: 4 x pressure cooker cover knobs